Posted on August 11, 2016 May 29, 2018 by FiTech EFI — 8 CommentsAre these systems E85 compatible? Yes, but please reduce the output claims of the system by 25-30%. System Rating E85 Go Street 400hp – 280hp Go EFI 4 600hp – 420hp Mean St 800hp – 580hp Go EFI 8 1200hp – 840hp Post navigationPrevious post: Are all of the sensors ‘over the counter’ replaceable?Next post: Can I adjust the fuel pressure on the Go EFI system? 8 comments on “Are these systems E85 compatible?” wade lindau October 20, 2016 The engine is a BBF 545ci making between 700 – 750HP I see that your command module runs a 340 EFI pump that will support 800-825 HP but I will be looking at running E85 in the future and I had concerns if the 340 EFI pump is going to be sufficient with E85 at this HP level I have read that the Aeromotive EFI fuel pump 450lph will support 750HP EFI using E85 but am unsure if the Go EFI 1200HP #30012 is ok to run with a pump of this size since I don’t want to damage the unit/regulator Bryce - FiTech Tech Pro October 28, 2016 When using E85 your HP capacity of the fuel system and EFI will both drop by 30%. The GO EFI 8 will support 840 hp and the FCC wil support 580 hp. Lewis October 28, 2016 Concerning e85, why is there not a tune built in for this? Tech support says use gas scale settings and add displacement to engine cid but it does not seem to work properly. Could you publish ideal settings for e85 and also under boost? Also will there be better documentation or support for this in the software updates? Bryce - FiTech Tech Pro October 28, 2016 We are working on an engine with E85 right now and understand the fueling changes are more extensive than just a CID change. Variations is E85 quality will dampen our ability to provide a perfect tune but we are striving to come up with a good base file. Thanks for your input. alex sanderson December 18, 2016 Can a flex fuel sensor be added to run e85 or regular fuel at will? I want to run both. Bryce - FiTech Tech Pro December 19, 2016 Sorry but there are no revisions to add it in. terry Cavanaugh February 18, 2017 running a 383 stroker 14:1 guessing 500 hp range.currently running dual predator carbs on e85. will your 30062 handle this setup, and will your 40003 command center handle the fueling needs. also have you come out with and e85 tuning for this setup yet? Bryce - FiTech Tech Pro February 27, 2017 Our systems will work with E85 but the horsepower rating drops by 30%. The 30062 will only support about 430hp on E85 and the 40003 will only support 580hp.